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Indicators / United States / Weather

Yearly precipitation, share of normal

% of normal · NOAA National Centers for Environmental Information, nClimDiv monthly temperature and precipitation, via climatedata.dev · rain and melted snow over the year, against its 1991–2020 average

Contiguous US, 2025
93% of normal
States with a figure
50 2025
Counties with a figure
3,134 2025
Yearly precipitation, share of normal, Contiguous US, 1895–202593% of normal in 2025, against 110% of normal in 2015 (−17 pts).
7080901001101201900192019401960198020002020
Indicator: Yearly precipitation, share of normal, % of normal, yearly (rain and melted snow over the year, against its 1991–2020 average); nClimDiv pcpn, sum of the 12 months / the 1991–2020 meanSource: NOAA National Centers for Environmental Information, nClimDiv monthly temperature and precipitation (U.S. public domain), via climatedata.dev county-climate, version 2026-10-25.b4bbb5298a
Show the numbers (131 rows)
YearContiguous US
202593
2024101
202394
202291
202197
202097
2019111
2018111
2017103
2016100
2015110
201498
201399
201288
201196
2010100
2009103
2008100
200793
200695
200596
2004106
200397
200293
200193
200090
199991
1998108
1997102
1996108
1995104
199498
1993104
1992100
1991104
1990103
198993
198883
198793
1986100
198596
1984100
1983111
1982108
198196
198090
1979105
197896
197797
197684
1975105
197498
1973112
1972101
197197
197095
196998
196897
196795
196688
196595
196497
196382
196291
1961100
196092
195998
195897
1957108
195681
195589
195484
195390
195284
1951100
195099
194997
194898
194794
194699
1945106
194498
194386
1942100
1941105
194097
193984
193895
193797
193687
193594
193482
193388
193297
193188
193082
192996
192894
1927102
192699
192586
192485
1923101
192295
192192
1920100
1919101
191892
191781
191694
1915105
191492
191395
191297
191194
191080
1909100
190895
190799
1906105
1905104
190489
190394
190298
190188
190098
189992
189894
189795
189695
189588

Every state, 2025

RankStateYearly precipitation, share of normal1 yr5 yr10 yr
1Kentucky114% of normal+12 pts−1 pts−2 pts
2South Dakota110% of normal+20 pts+33 pts+2 pts
3Oklahoma109% of normal+8 pts+1 pts−39 pts
4Montana106% of normal+16 pts+17 pts+17 pts
5North Dakota105% of normal+7 pts+37 pts+11 pts
6California105% of normal−13 pts+50 pts+37 pts
7Alaska104% of normal+4 pts+3 pts−3 pts
8Wyoming102% of normal+19 pts+29 pts−3 pts
9Kansas102% of normal+7 pts+13 pts−11 pts
10Nebraska101% of normal+8 pts+25 pts−15 pts
11Arkansas98% of normal−6 pts−23 pts−30 pts
12Idaho98% of normal+3 pts+4 pts+3 pts
13Tennessee97% of normal0 pts−22 pts−10 pts
14West Virginia96% of normal+6 pts−18 pts−8 pts
15Ohio95% of normal+3 pts−8 pts−9 pts
16Virginia95% of normal−5 pts−39 pts−14 pts
17Michigan94% of normal−8 pts−10 pts+1 pts
18Iowa94% of normal−10 pts+12 pts−25 pts
19Minnesota93% of normal−10 pts+8 pts−10 pts
20Washington93% of normal−5 pts−12 pts−7 pts
21Nevada92% of normal0 pts+35 pts−19 pts
22New York92% of normal−9 pts+2 pts−1 pts
23Indiana91% of normal−7 pts−6 pts−18 pts
24Rhode Island91% of normal−24 pts+1 pts+8 pts
25Vermont91% of normal−10 pts+4 pts−1 pts
26Alabama91% of normal−8 pts−30 pts−17 pts
27New Mexico91% of normal−2 pts+30 pts−50 pts
28Texas91% of normal−12 pts−1 pts−53 pts
29Oregon91% of normal−23 pts+1 pts−3 pts
30Wisconsin90% of normal−19 pts−10 pts−15 pts
31Mississippi90% of normal−9 pts−28 pts−14 pts
32Pennsylvania89% of normal−10 pts−7 pts−6 pts
33South Carolina89% of normal−20 pts−35 pts−36 pts
34Colorado89% of normal−18 pts+21 pts−32 pts
35Louisiana89% of normal−31 pts−23 pts−24 pts
36Massachusetts88% of normal−11 pts+1 pts+3 pts
37North Carolina88% of normal−17 pts−43 pts−27 pts
38Delaware88% of normal+6 pts−34 pts−13 pts
39Missouri88% of normal−13 pts−19 pts−40 pts
40Georgia88% of normal−25 pts−32 pts−23 pts
41Connecticut86% of normal−21 pts−3 pts+10 pts
42Maine86% of normal−9 pts−4 pts−9 pts
43Maryland85% of normal−2 pts−32 pts−19 pts
44Arizona84% of normal0 pts+28 pts−39 pts
45New Hampshire84% of normal−12 pts−4 pts−8 pts
46Florida82% of normal−22 pts−24 pts−15 pts
47New Jersey82% of normal−8 pts−23 pts−11 pts
48Illinois81% of normal−19 pts−22 pts−39 pts
49Utah77% of normal−17 pts+23 pts−37 pts
50Hawaii68% of normal−19 pts−36 pts−60 pts

Rank 1 is the highest value. States are the 50 states, DC, Puerto Rico and the Virgin Islands where they have a figure.

Highest and lowest counties, 2025

HighestStateYearly precipitation, share of normal
Ziebach CountySouth Dakota149% of normal
Perkins CountySouth Dakota144% of normal
Ventura CountyCalifornia140% of normal
Corson CountySouth Dakota140% of normal
Sioux CountyNorth Dakota140% of normal
Adams CountyNorth Dakota139% of normal
Boyle CountyKentucky139% of normal
Dewey CountySouth Dakota138% of normal
Los Angeles CountyCalifornia137% of normal
Yuma CountyArizona137% of normal
LowestStateYearly precipitation, share of normal
Kinney CountyTexas50% of normal
Ector CountyTexas57% of normal
Maui CountyHawaii60% of normal
Atascosa CountyTexas61% of normal
Champaign CountyIllinois61% of normal
La Salle CountyTexas62% of normal
Andrews CountyTexas63% of normal
Kalawao CountyHawaii64% of normal
Val Verde CountyTexas64% of normal
Catron CountyNew Mexico64% of normal

Every county's figure is on its own page, in its profile table, with its rank among all counties and within its state.

Get this data

This page's numbers, as JSON:

curl https://visualizedata.org/data/us-indicators/us-precip-share.json

Every place from climatedata.dev (live, no key; NOAA National Centers for Environmental Information data, this exact version):

curl "https://api.climatedata.dev/v1/county-climate@2026-10-25.b4bbb5298a/download/county-climate.parquet"

Open the JSON

Source

  • NOAA National Centers for Environmental Information, nClimDiv monthly temperature and precipitation (U.S. public domain): nClimDiv pcpn, sum of the 12 months / the 1991–2020 mean.
  • Read through climatedata.dev, dataset county-climate, version 2026-10-25.b4bbb5298a; its 4 input files from the NOAA National Centers for Environmental Information are named with their sha256 in this page's data, and the site's checks recompute every figure from them.
  • A year counts once all twelve of its months are in NOAA's file. The figure is the year's total precipitation (rain and melted snow) as a percent of 1991–2020's average yearly total; 100% is a normal year. Counties come from NOAA's county file (climatedata.dev county-climate); states and the contiguous US, the national figure, from its statewide file (us-climate). NOAA's series are built from station data gridded to 5 km, so a county figure is an area average, not one thermometer. NOAA files DC as part of Maryland's county list; it is listed as a county here.
  • NOAA adds each month early in the next; climatedata.dev re-reads it daily.
  • 8 areas in the source are not places in the geo registry and are left out: us-county-09001, us-county-09003, us-county-09005, us-county-09007, us-county-09009, us-county-09011, us-county-09013, us-county-09015 (Connecticut's former counties, retired Alaska and South Dakota codes, the Virgin Islands).
  • Built 2026-10-27.